21342555

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12161}}^1$

素因数の和:12188

約数の個数: 32

約数和(自身を含む): 40864320

約数和(自身を除く): 19521765

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 195, 351, 585, 1755, 12161, 36483, 60805, 109449, 158093, 182415, 328347, 474279, 547245, 790465, 1422837, 1641735, 2371395, 4268511, 7114185, 21342555]

約数ペア:

[(1, 21342555), (3, 7114185), (5, 4268511), (9, 2371395), (13, 1641735), (15, 1422837), (27, 790465), (39, 547245), (45, 474279), (65, 328347), (117, 182415), (135, 158093), (195, 109449), (351, 60805), (585, 36483), (1755, 12161)]